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#!/usr/bin/env ruby
top = File.expand_path(File.join(File.dirname(__FILE__), ".."))
$LOAD_PATH.unshift File.join(top, "ext", "cairo")
$LOAD_PATH.unshift File.join(top, "lib")
require 'cairo'
require 'stringio'
def render(output, surface_class)
surface_class.new(output, 200, 200) do |surface|
cr = Cairo::Context.new(surface)
# fill background with white
cr.set_source_color("#fffc")
cr.paint
# create shape
cr.move_to(50, 50)
cr.curve_to(100, 25, 100, 75, 150, 50)
cr.line_to(150, 150)
cr.line_to(50, 150)
cr.close_path
cr.set_source_color(:black)
cr.fill_preserve
cr.set_source_color(:red)
cr.set_line_join(Cairo::LINE_JOIN_MITER)
cr.set_line_width(4)
cr.stroke
cr.show_page
surface.finish
end
end
def output(surface_class_name, suffix)
if Cairo.const_defined?(surface_class_name)
surface_class = Cairo.const_get(surface_class_name)
render("test.#{suffix}", surface_class)
output = StringIO.new
render(output, surface_class)
output.rewind
File.open("test2.#{suffix}", "wb") do |f|
f.print(output.read)
end
else
puts("#{surface_class_name} isn't supported.")
end
end
output("PSSurface", "ps")
output("PDFSurface", "pdf")
output("SVGSurface", "svg")
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